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Chapters1-3 Chapters 7-8 Chapter 9 Chapter 10Chapters4-5

The amount of product that could form during a reaction calculated from a balanced equation.

Theoretical Yield

A measure of the amount of matter that an object contains.

Mass

A measure of the space occupied by a sample of matter.

Volume

Any reactant that is used up first in a chemical reaction.

Limiting Reagent

The maximum amount of product that could be formed from given amounts of reactants.

Number of Molecules

The reactant that is not completely used up in a reaction.

Excess Reagent

The amount of product formed when a reactant is carried out in the laboratory.

Actual Yield

The ratio of the actual yield to the theoretical yield.

Percent Yield

If 1 egg and 1/3 cup of oil are needed for each bag of brownie mix, how many bags of brownie mix do you need if you want to

use up all 3 eggs and 1 cup of oil?a. 1b. 2c. 3d. 4

c. 3

What is conserved in the reaction shown below?H2(g)+Cl2(g)--->2HCl(g)

a. mass onlyb. mass and moles onlyc. mass, moles, and molecules onlyd. mass, moles, molecules, and volume.

d. mass, moles, molecules, and volume.

What is conserved in the reaction below?N2(g)+3F2(g)---->2NF3(g)

a. atoms onlyb. mass onlyc. mass and atoms onlyd. moles only

b. mass only

In every chemical reaction,a. mass and molecules are conserved.b. moles and liters are conserved.c. mass and atoms are conserved.d. moles and molecules are conserved.

c. mass and atoms

What is the molarity of a solution that contains 6 moles of solute 2 liters of solution?

a. 6Mb. 12Mc. 7Md. 3M

d. 3M

What is the molarity of 200mL of solution in which 2.0 moles of sodium bromide is dissolved?

a. 2.0Mb. 10Mc. 0.40Md. 4.0M

b. 10M

What mass of sucrose, C12 H22 O11, is needed to make 500.0mL of a 0.200M solution?

a. 34.3gb. 100gc. 17.1gd. 68.4g

a. 34.2g

What mass of Na2SO4 is needed to make 2.5L of 2.0M solution (Na=23g; S=32g; O=16g)

a. 178gb. 284gc. 356gd. 710g

d. 710g

How many Ml of a 2.0M NaBr solution are needed to make 200.0mL of 0.50M NaBr?

a. 25mLb. 50mLc. 100mLd. 150mL

b. 50mL

What is the charge on the hydronium ion?a. 2-b. 2c. 0d. 1+

d. 1+

Which of these solutions is the most basic?a. [H+]= 1x10-2Mb. [OH-]=1x10-4Mc. [H+]=1x10-11Md. [OH-]=1x10-13M

b. [OH-]=1x10-4M

A 0.12M solution of an acid that ionizes only slightly in solutions would be termed______?

a. concentrated and weakb. strong and dilutec. dilute and weakd. concentrated and strong

c. dilute and weak

When the temperature and number of particles of a gas are constant, which of the following is also constant?

a. the sum of the pressure and volume.b. the difference of the pressure and volume.c. the product of the pressure and volume.d. the ratio of the pressure and volume.

c. the product of the pressure and volume.

The volume of a gas is 250mL at 340.0kPa pressure. What will the volume be when the pressure is reduced to 50.0kPa, assuming

the temperature remains constant?

P1xV1/P2=V2 or250mLx340.0kPa/50.0kPa=xkpa cancels out to give u 1700mL for your volume.

How many moles of N2 are in a flask with a volume of 250mL at a pressure of 300.0kPa and a temperature of

300.0k?

PV = nRT(300kPa)(0.250 Litres) = n (8.31 kPa-L/mol-K)(300.0K)

n = 0.0301 moles

The gaseous product of a reaction is collected in a 350.0L container at 27C. The pressure in the container is 300.0kPa and the gas has a

mass of 96.0g. How many moles of the gas are in the container?

n = pV/RT = 2.96 atm x 25.0 / 0.08206 x 300 K= 3.0 mol

What is the pressure exerted by 32g of O2 in a 33.0L container of 30.0C?

A rigid container of O2 has a pressure of 340 kPa at a temperature of 713 K.